无语了....应该用 using System.Data.Odbc 这里贴code会remove whitespace, 看起来比较麻烦. 你可以参考.NET Framewkrok SDK Documentation. 只要你的机器上装了.NET Framework, 就可以从"Start"里找到. public void ReadMyData(string myConnString) { string mySelectQuery = "SELECT OrderID, CustomerID FROM Orders"; OdbcConnection myConnection = new OdbcConnection(myConnString); OdbcCommand myCommand = new OdbcCommand(mySelectQuery,myConnection); myConnection.Open(); OdbcDataReader myReader; myReader = myCommand.ExecuteReader(); // Always call Read before accessing data. while (myReader.Read()) { Console.WriteLine(myReader.GetInt32(0) + ", " + myReader.GetString(1)); } // always call Close when done reading. myReader.Close(); // Close the connection when done with it. myConnection.Close(); }

so ft............all online reference I get is telling me should using Microsoft.Data.Odbc; eg http://www.mysql.com/articles/dotnet/#ADO.NET so ft.......